JO's copy of Factorising Quadratics of form $\displaystyle{x ^ 2 + bx + c}$ in JO's workspace

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Link to this question https://numbas.mathcentre.ac.uk/question/27236/jo-s-copy-of-factorising-quadratics-of-form-displaystyle-x-2-bx-c/embed/
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